Stack test

Before you begin, make sure your PC or Mac meets the system requirements.

If you are reinstalling Office, you have already redeemed a product key, or you are installing Office at work or school and know you have a license, then go to the section sign in and install Office on your PC or Mac.

However, if this is the first time you're installing Office, you may have some pre-installation steps to do first. Expand the Learn more section below for more info.

Your browser does not support video. Install Microsoft Silverlight, Adobe Flash Player, or Internet Explorer 9.

Choose an option

If this is the first time you're installing Office, you may have to complete a set of pre-installation steps first or you may need to follow different steps than what's contained below. What you do depends if your copy of Office is an Office for home or an Office for business product and whether or not you have a product key you have to redeem, an existing account associated with Office, or a pre-assigned license.

Office for home

If you have an Office for home product and it came with a product key*, before installing for the first time (or sharing it if you have Microsoft 365 Family), you need to redeem your product key first.

Go to office.com/setup and sign in with an existing or new Microsoft account* and then enter your product key to redeem it. Redeeming your key is what adds your Microsoft account to Office and you only have to do this once. If you're renewing an Microsoft 365 subscription with a new product key, use the same Microsoft account you previously associated with your expired version subscription.

Tip: Once this is done, anytime you need to install or reinstall Office you can go straight to the next section, Sign in to download Office and select the tab for help to install on a PC or Mac. Be sure to sign in with the same Microsoft account you used to redeem your product key at office.com/setup.

Office for business

If your Office for business subscription plan includes the desktop version of the Office apps you won't see an option to install it unless someone in your organization assigned a license to you.

Learn how to check this in What Microsoft 365 business product or license do I have? or if you're an Microsoft 365 admin responsible for assigning licenses to people in your organization, see Assign licenses to users.

Once you verify you have a license, anytime you need to install or reinstall Office you can go straight to the section below, Sign in to download Office and select the tab for steps to install on a PC or Mac. You'll sign in with your work or school account for these versions of Office.

*If you don't have a product key or an account

Some versions of Office such as Office Professional Plus 2019, Office Standard 2019, or a stand-alone app such as Word 2019 or Project 2019 don't have an associated Microsoft account, or work or school account.

The steps to install these versions can be different depending if you got Office through one of the following ways:

Microsoft HUP: You bought Office for personal use through your company benefit program and have a product key, see Install Office through HUP.

Volume license versions: IT departments might use a different method when installing Office for people in their organization. Talk to your IT department for install help.

Third-party seller: You bought Office from a third-party and you're having problems with the product key.

Sign in to download and install Office

Sign in to download Office

Go to www.office.com and if you're not already signed in, select Sign in.

Go to login.partner.microsoftonline.cn and if you're not already signed in, sign in with your work or school account username and existing password.

Go to portal.office.de and sign in if you're not already signed in with your work or school account username and existing password.
Sign in with the account you associated with this version of Office. This account can be a Microsoft account, or work or school account. I forgot the account I use with Office
After signing in, follow the steps that match the type of account you signed in with.
You signed in with a Microsoft account
1. From the Office home page select Install Office.
2. Select Install (or depending on your version, Install Office>).
You signed in with a work or school account
1. From the home page select Install Office (If you set a different start page, go to aka.ms/office-install.)
  
  From the home page select Install Office (If you set a different start page, go to login.partner.microsoftonline.cn/account.)
  
  From the home page select Install Office (If you set a different start page, go to portal.office.de/account.)
2. Select Office 365 apps to begin the installation.
The 64-bit version is installed by default unless Office detects you already have a 32-bit version of Office (or a stand-alone Office app such as Project or Visio) installed. In this case, the 32-bit version of Office will be installed instead.

To change from a 32-bit version to a 64-bit version or vice versa, you need to uninstall Office first (including any stand-alone Office apps you have such as Project of Visio). Once the uninstall is complete, sign in again to www.office.com and select Other install options, choose the language and version you want (64 or 32-bit), and then select Install. (See Install Visio or Install Project if you need to reinstall those stand-alone apps.)

To change from a 32-bit version to a 64-bit version or vice versa, you need to uninstall Office first (including any stand-alone Office apps you have such as Project of Visio). Once the uninstall is complete, sign in again to login.partner.microsoftonline.cn and select Other install options, choose the language and version you want (64 or 32-bit), and then select Install. (See Install Visio or Install Project if you need to reinstall those stand-alone apps.)

To change from a 32-bit version to a 64-bit version or vice versa, you need to uninstall Office first (including any stand-alone Office apps you have such as Project of Visio). Once the uninstall is complete, sign in again to portal.office.de and select Other install options, choose the language and version you want (64 or 32-bit), and then select Install. (See Install Visio or Install Project if you need to reinstall those stand-alone apps.)
This completes the download of Office to your device. To complete the installation, follow the prompts in the "Install Office" section below.

Tip: Don't see an install option after signing in? There could be an issue with your account. Select Need help? from above and review the solutions under Account questions.

Install Office

Depending on your browser, select Run (in Edge or Internet Explorer), Setup (in Chrome), or Save File (in Firefox).

If you see the User Account Control prompt that says, Do you want to allow this app to make changes to your device? select Yes.

The install begins.
Your install is finished when you see the phrase, "You're all set! Office is installed now" and an animation plays to show you where to find Office applications on your computer. Select Close.

Installation or sign in issues?

Tip: You can download and install the Microsoft Support and Recovery Assistant to help with Microsoft 365 installation issues on a PC. For more information, see About the Microsoft Support and Recovery Assistant.

If you're having an installation issue such as Office taking long to install, try Need help? for a list of common issues.

Activate Office

To open an Office app, select the Start button (lower-left corner of your screen) and type the name of an Office app, like Word.

If you have Windows 8.1 or 8.0, type the name of an Office app on the Start screen. Can't find your Office apps?
To open the Office app, select its icon in the search results.
When the Office app opens, accept the license agreement. Office is activated and ready to use.

Note: The Activation Wizard appears if Office has trouble activating. Complete the steps in the wizard to finish activating Office.